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Author Topic: Welder plug works!!  (Read 1024 times)
happycamperbrat
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« on: April 17, 2011, 05:47:32 PM »

I got the plug in and tested it, photos are here http://s495.photobucket.com/albums/rr315/happycamperbrat/Little%20GTO/home%20hookups/ with captions about the job. But now Im back onto the RV plug and it is only 3 wire sooooooo do I need a single pole breaker now or if not, what the heck do I do with the other hot wire off the double pole breaker?
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The Little GTO is a 102" wide and 40' long 1983 GMC RTS II and my name is Teresa in case I forgot to sign my post
Stormcloud
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« Reply #1 on: April 17, 2011, 06:19:00 PM »

You need a single pole breaker. 30amp would be standard with #10 wire for connection.
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Mark Morgan    near Brandon, Manitoba, Canada
1972 MCI-7     'PapaBus'  8v-71N MT654 Automatic
happycamperbrat
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« Reply #2 on: April 17, 2011, 08:49:46 PM »

Thank you Storm! I just had a light bulb go off in my head about all of this. Yes, I do have to use a single pole to run 3 wired anything BECAUSE otherwise if I split the double pole to run different things then I would again run into the same problem as i did originally with drawing 30 amps out of an instument (like the 120 outlet) and having it catch fire........ right?! It's what everyone was trying to tell me!
« Last Edit: April 17, 2011, 08:51:52 PM by happycamperbrat » Logged

The Little GTO is a 102" wide and 40' long 1983 GMC RTS II and my name is Teresa in case I forgot to sign my post
Sean
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« Reply #3 on: April 17, 2011, 09:16:31 PM »

Teresa,

Now you have me confused.  All the installation photos are of a 14-30R, which is a 4-wire circuit requiring a double-pole breaker.  The last photo, of a retail box, shows a TT-30R, which is a 3-wire outlet.

Are you going to replace the 14-30R with the TT-30R?  I thought you were just going to use an adapter from the 14-30 to a TT-30?

If you are going to replace the 14-30 with the TT-30, ideally you would change to a single-pole, 30-amp breaker.  The second (red) hot wire would be removed.  However, it is not unsafe to continue to use the double-pole breaker in place now.  Just leave the second pole unconnected.

-Sean
http://OurOdyssey.BlogSpot.com
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happycamperbrat
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« Reply #4 on: April 17, 2011, 09:22:07 PM »

Sorry Sean. I am leaving the 50amp as is. Just today I finished the installation of the 4 wire 30amp welder outlet. But Im still going to install a 3 wire 30amp RV plug, which is the last photo. I decided not to use the adapter after all, and am just going with a rv dedicated 30amp outlet.
« Last Edit: April 17, 2011, 09:25:09 PM by happycamperbrat » Logged

The Little GTO is a 102" wide and 40' long 1983 GMC RTS II and my name is Teresa in case I forgot to sign my post
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« Reply #5 on: April 17, 2011, 09:59:54 PM »

Sorry Sean. I am leaving the 50amp as is. Just today I finished the installation of the 4 wire 30amp welder outlet. But Im still going to install a 3 wire 30amp RV plug, which is the last photo. I decided not to use the adapter after all, and am just going with a rv dedicated 30amp outlet.

Ah.  OK, then, yes, you want to use a 30-amp single pole breaker and #10 THHN or THWN wire.

-Sean
http://OurOdyssey.BlogSpot.com
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Full-timing in a 1985 Neoplan Spaceliner since 2004.
Our blog: http://OurOdyssey.BlogSpot.com
happycamperbrat
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« Reply #6 on: April 17, 2011, 10:05:25 PM »

Gottcha! And I know you and your lady travel thru Death Valley area now and then, come on by and hook-up  Grin
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The Little GTO is a 102" wide and 40' long 1983 GMC RTS II and my name is Teresa in case I forgot to sign my post
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